Authorization: Bearer <API key>= or "": Exact match!= or "not": Not equal>, >=, <, <= or "gt", "gte", "lt", "lte": Numeric comparisonscontains: String contains (case-insensitive)startsWith: String starts withendsWith: String ends within or IN: Value in listnot_in or NOT IN: Value not in listtotal_count: Total number of traces matching filterstotal_cost: Sum of all trace costs (in dollars)total_tokens: Sum of all tokens (input + output)total_prompt_tokens: Sum of all input tokenstotal_completion_tokens: Sum of all output tokensavg_latency: Average latency across all traces (in seconds)